Evidence map›Paper›PMID 19236721›Full record

ArticleBMC neuroscience2009

The extracellular matrix controls gap junction protein expression and function in postnatal hippocampal neural progenitor cells.

Sophie Imbeault, Lianne G Gauvin, Hadi D Toeg, Alexandra Pettit, Catherine D Sorbara, Lamiaa Migahed, Rebecca DesRoches, A Sheila Menzies, Kiyomasa Nishii, David L Paul and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.2field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 65 citations in OpenAlex.

  1. Review
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  11. The Extracellular Matrix and Biocompatible Materials in Glioblastoma Treatment.Frontiers in bioengineering and biotechnology · 2019
    Review
  12. Article
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  14. Review
  15. Heterocellular Contacts with Mouse Brain Endothelial CellsFrontiers in cellular neuroscience · 2016
    Article
  16. Article
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  19. Connexin45 modulates the proliferation of transit-amplifying precursor cells in the mouse subventricular zone.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  20. Cell-autonomous inactivation of the reelin pathway impairs adult neurogenesis in the hippocampus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 3 countries.

Sophie ImbeaultNeural Regeneration Laboratory and Ottawa Institute of Systems Biology, Dept. of Biochemistry, Microbiology, and Immunology, University of Ottawa, ON, Canada. even_grable@hotmail.com
Lianne G Gauvin
Hadi D Toeg
Alexandra Pettit
Catherine D Sorbara
Lamiaa Migahed
Rebecca DesRoches
A Sheila Menzies
Kiyomasa Nishii
David L Paul
Alexander M Simon
Steffany Al Bennett
University of Ottawa · CABoston University · USHarvard University · USThe University of Tokyo · JPUniversity of Arizona · US

Funding

MOLECULAR CLONING OF CARDIAC GAP JUNCTION ION CHANNELSR01GM037751 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI PAUL, DAVID L · 1987 to 2010
$4.4M
Gap Junction Mediated Signaling and Vascular ResponsesR01HL064232 · NHLBI · UNIVERSITY OF ARIZONA · PI SIMON, ALEXANDER M · 2001 to 2010
$2.2M
Connexins and electrical synapses in the retinaR01EY014127 · NEI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI PAUL, DAVID L · 2004 to 2011
$1.4M
NEI NIH HHS EY014127NEI NIH HHS R01 EY014127NHLBI NIH HHS HL64232NHLBI NIH HHS R01 HL064232NIGMS NIH HHS GM37751NIGMS NIH HHS R01 GM037751
6 · The paper itself

Abstract

backgroundGap junction protein and extracellular matrix signalling systems act in concert to influence developmental specification of neural stem and progenitor cells. It is not known how these two signalling systems interact. Here, we examined the role of ECM components in regulating connexin expression and function in postnatal hippocampal progenitor cells.

resultsWe found that Cx26, Cx29, Cx30, Cx37, Cx40, Cx43, Cx45, and Cx47 mRNA and protein but only Cx32 and Cx36 mRNA are detected in distinct neural progenitor cell populations cultured in the absence of exogenous ECM. Multipotential Type 1 cells express Cx26, Cx30, and Cx43 protein. Their Type 2a progeny but not Type 2b and 3 neuronally committed progenitor cells additionally express Cx37, Cx40, and Cx45. Cx29 and Cx47 protein is detected in early oligodendrocyte progenitors and mature oligodendrocytes respectively. Engagement with a laminin substrate markedly increases Cx26 protein expression, decreases Cx40, Cx43, Cx45, and Cx47 protein expression, and alters subcellular localization of Cx30. These changes are associated with decreased neurogenesis. Further, laminin elicits the appearance of Cx32 protein in early oligodendrocyte progenitors and Cx36 protein in immature neurons. These changes impact upon functional connexin-mediated hemichannel activity but not gap junctional intercellular communication.

conclusionTogether, these findings demonstrate a new role for extracellular matrix-cell interaction, specifically laminin, in the regulation of intrinsic connexin expression and function in postnatal neural progenitor cells.

Indexed as

AnimalsBlotting, WesternCell CommunicationCells, CulturedConnexinsExtracellular MatrixFlow CytometryHippocampusImmunohistochemistryLamininMiceMice, KnockoutNeurogenesisNeuronsOligodendrogliaReverse Transcriptase Polymerase Chain ReactionConnexinsLamininRNA, Messenger

Identifiers

PMID19236721
PMCPMC2655299
OpenAlexW2069981715

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.